Brookfield DV-III Ultra Rheometer - Manual (Page 42)

Brookfield Engineering Laboratories, Inc. Page 42 Manual No. M/98-211-B0104
Brookfield Engineering Laboratories, Inc. Page 42 Manual No. M98-211-E0912
The viscometer motor would be automatically turned OFF and the default screen display (Figure IV-
18) would show zero (0.0) RPM. At this point, the user may perform any valid viscometer operation
- load a new speed set; run a direct speed; set alarms or even re-start the current program.
S PROGRAMMED SPEED HOLD
The user may interrupt program mode operation at any time by pressing the PROG key during
program execution. The following message would be displayed:
PROGRAM HOLD
1 = CONTINUE PROGRAM
3 = STOP PROGRAM
Figure IV-30
The viscometer motor would be automatically turned OFF and the DV-III+ would be awaiting user
key input. If the user presses the “1” key, the DV-III Ultra will continue executing the current
program, picking up from whichever RPM (and time, if applicable) it had been interrupted.
However, if the user had pressed the “3” key, operation would be identical to that described above
for Programmed Speed Stop mode.
IV.3 Bevis Programs for Making Viscosity Measurements
The B.E.V.I.S. Programming Method allows the operator to control the DV-III Ultra through the
variables of speed, temperature and time while providing for independent data collection. Programs
can include up to 25 commands with a maximum data count of 800. The DV-III Ultra can store
up to 10 programs. Upon completion of the program the data may be viewed on the DV-III Ultra
display, analyzed or printed to an attached parallel or serial printer.
B.E.V.I.S. programs are created on a PC using Rheoloader software (supplied with the DV-III
Ultra). The programs are "loaded" onto the DV-III Ultra. Loaded programs cannot be deleted,
but can be overwritten.
IV.3.1 Setting Up B.E.V.I.S. Programs
B.E.V.I.S. (Brookfield Engineering Viscometers Instruction Set) is a scripting language developed
at Brookfield Engineering Laboratories that allows for the creation of flexible programs to control
our line of Rheometers. In the case of the DV-III Ultra Rheometer, programs are created then loaded
into the Rheometer using the RheoLoader software.
Some features of the scripting language are:
• Repeatedly run the same program for quality control purposes.
• Wait for a prevailing condition before continuing with the program (i.e. torque value, a
temperature value, a key press, etc.).
• Run the Rheometer at any of the speeds in the Custom Speed menu.
• Display messages to the screen or an attached printer to aid in operator usability.